House districts / Texas
Texas's 21st congressional district
TX-21. Redrawn for 2026: the November 2026 election is on new lines. The outline shows the 2024 district with the same number.
Fundraising
- Mark Charles Teixeira Ras of Oct 14, 2026Raised $4.4mSpent $4.0m · Cash $441k
- Kristin A Hook Das of Oct 14, 2026Raised $389kSpent $341k · Cash $52k
12 other 2026 candidates filed reports (primary candidates). 6 other candidates have not filed.
Federal Election Commission, candidate totals, public domain.
President in this district
PollCheck calculation from precinct returns on the 2026 lines (method).
| Year | Democrat | Republican | Other | Margin | 2024 lines |
|---|---|---|---|---|---|
| 2024 | Harris 38.5% | Trump 60.2% | 1.3% | R+21.8 | R+23.6 |
| 2020 | Biden 40.9% | Trump 57.6% | 1.5% | R+16.7 | R+19.7 |
| 2016 | Clinton 35.0% | Trump 59.3% | 5.7% | R+24.2 | R+27.9 |
Who lives here
| Measure | This district | US |
|---|---|---|
| People | ||
| Population | 766,987 | |
| Adults (18+) | 612,155 | |
| Citizens, % of adults* | 94.5% | 92.1% |
| Age, % of adults | ||
| 18 to 29* | 23.2% | 20.3% |
| 30 to 44* | 24.4% | 25.9% |
| 45 to 64* | 30.0% | 31.8% |
| 65 and over* | 22.5% | 22.0% |
| Race and Hispanic origin, % of residents | ||
| White | 54.3% | 57.8% |
| Black | 3.7% | 12.1% |
| Hispanic | 34.6% | 18.7% |
| Asian | 2.8% | 5.9% |
| Other or more than one | 4.6% | 5.5% |
| Education and income | ||
| Bachelor's degree or higher, % of 25+* | 44.4% | 35.7% |
| Median household income* | $84,949 | $80,734 |
* Estimated for the 2026 lines from census blocks (ACS 2020-2024). Population, adults and race: 2020 Census, counted on the 2026 lines. The tick marks the US figure.
Winning margin
Results since 1976
| Year | Winner | Share | Runner-up | Share | Margin |
|---|---|---|---|---|---|
| 2024 lines, elections 2022-2024: redrawn for 2026 seat count changed from 36 to 38 after the census | |||||
| 2024 | Chip Roy Republican | 61.9% | Kristin Hook Democrat others 2.1% | 36.1% | R+25.8 |
| 2022 | Chip Roy Republican | 62.8% | Claudia Andreana Zapata Democrat | 37.2% | R+25.7 |
| Earlier lines, elections 2012-2020 seat count changed from 32 to 36 after the census | |||||
| 2020 | Chip Roy Republican | 52.0% | Wendy R. Davis Democrat others 2.7% | 45.4% | R+6.6 |
| 2018 | Chip Roy Republican | 50.2% | Joseph Kopser Democrat others 2.1% | 47.6% | R+2.6 |
| 2016 | Lamar Smith Republican | 57.0% | Tom Wakely Democrat others 6.5% | 36.5% | R+20.6 |
| 2014 | Lamar Smith Republican | 71.8% | Antonio Diaz Green others 13.5% | 14.7% | R+57.0 |
| 2012 | Lamar Smith Republican | 60.5% | Candace E. Duval Democrat others 4.0% | 35.4% | R+25.1 |
| Earlier lines, elections 2006-2010 LULAC v. Perry (2006): court-drawn lines for five districts | |||||
| 2010 | Lamar Smith Republican | 68.9% | Lainey Melnick Democrat others 3.2% | 27.9% | R+41.0 |
| 2008 | Lamar Smith Republican | 80.0% | James Arthur Stohm Libertarian | 20.0% | R+60.0 |
| 2006 Special | Lamar S. Smith Republican | 60.1% | John Courage Democrat others 15.4% | 24.5% | R+35.6 |
| Earlier lines, elections 2004 Texas Legislature's 2003 mid-decade map | |||||
| 2004 | Lamar S. Smith Republican | 61.5% | Rhett R. Smith Democrat others 3.0% | 35.5% | R+26.0 |
| Earlier lines, elections 2002 seat count changed from 30 to 32 after the census | |||||
| 2002 | Lamar S. Smith Republican | 72.9% | John Courage Democrat others 1.8% | 25.3% | R+47.6 |
| Earlier lines, elections 1996-2000 Bush v. Vera (1996): 13 districts redrawn by the court, with special elections that November | |||||
| 2000 | Lamar S. Smith Republican | 75.9% | Jim Green Democrat others 2.0% | 22.2% | R+53.7 |
| 1998 | Lamar S. Smith Republican | 91.4% | Jeffrey Charles Blunt Libertarian | 8.6% | R+82.8 |
| 1996 | Lamar S. Smith Republican | 76.4% | Gordon H. Wharton Democrat others 1.2% | 22.4% | R+54.0 |
| Earlier lines, elections 1992-1994 seat count changed from 27 to 30 after the census | |||||
| 1994 | Lamar S. Smith Republican | 90.0% | Kerry L. Lowry Independent | 10.0% | R+79.9 |
| 1992 | Lamar S. Smith Republican | 72.2% | James M. Gaddy Democrat others 4.1% | 23.7% | R+48.4 |
| Earlier lines, elections 1982-1990 seat count changed from 24 to 27 after the census | |||||
| 1990 | Lamar S. Smith Republican | 74.8% | Kirby J. Roberts Democrat | 25.1% | R+49.7 |
| 1988 | Lamar Smith Republican | 93.2% | James A. Robinson Libertarian | 6.8% | R+86.5 |
| 1986 | Lamar Smith Republican | 60.6% | Pete Snelson Democrat others 0.9% | 38.5% | R+22.1 |
| 1984 | Tom Loeffler Republican | 80.6% | Joe Sullivan Democrat | 19.4% | R+61.2 |
| 1982 | Tom Loeffler Republican | 74.5% | Charles S. Stough Democrat others 0.9% | 24.6% | R+50.0 |
| Earlier lines, elections 1976-1980 | |||||
| 1980 | Tom Loeffler Republican | 76.5% | Joe Sullivan Democrat others 0.7% | 22.8% | R+53.8 |
| 1978 | Thomas G. Loeffler Republican | 57.0% | Nelson William Wolff Democrat | 43.0% | R+14.1 |
| 1976 | Robert (Bob) Krueger Democrat | 71.0% | Bobby A. Locke Republican others 2.2% | 26.7% | D+44.3 |
More on Texas
Other Texas districts
About these results
Shares count all candidate votes, including write-ins, with a candidate's votes on several party lines added together. Each result is on the lines in force at the time. Mid-decade redraws before 2016 may be unmarked.
President in this district: 2024 on the new lines is the official figure published by the state. 2016 and 2020 are estimates: precinct votes are split between districts by census block. The last column is the margin in TX-21 on the 2024 lines.
Counties only partly inside the district show the 2024 result for that part; estimates are labelled.
Margin chart: winner minus runner-up. Gaps are unopposed races; dashed lines are new district lines.
Who lives here (2026 lines) is estimated from Census survey figures split by population.
Sources
Results: MIT Election Data and Science Lab, U.S. House 1976-2016 (doi:10.7910/DVN/IG0UN2, CC0; via MEDSL/constituency-returns), and Clerk of the US House, Statistics of the Presidential and Congressional Election 2018-2024 (public domain).
Presidential results: PollCheck calculation from MIT Election Data and Science Lab 2024 precinct returns (doi:10.7910/DVN/XDJYKC, doi:10.7910/DVN/USBYR4, CC0; state totals doi:10.7910/DVN/42MVDX, CC0) and Voting and Election Science Team 2016 and 2020 precinct results and shapes (doi:10.7910/DVN/NH5S2I, doi:10.7910/DVN/K7760H, CC BY 4.0), with US Census Bureau 2020 block populations and block equivalency files (public domain). Official figures: Texas Legislative Council (2024 on the 2026 lines); Louisiana, New Jersey, California and Washington election offices (county totals). Certified results transcribed by Wikipedia (CC BY-SA 4.0): Maine 2024 by district: 2024 United States presidential election in Maine (revision 1382530995); Indiana county totals: 2024 United States presidential election in Indiana (revision 1382505975); Oregon county totals: 2024 United States presidential election in Oregon (revision 1382605746).
District lines: US Census Bureau TIGER/Line 2026 (120th Congress) and 2025 cartographic boundary files (119th Congress), public domain.
Members: unitedstates/congress-legislators (CC0).
Counties: US Census Bureau 2024 cartographic boundary file (public domain); 2024 county results summed from the same MEDSL precinct returns, with the official county totals above.
Demographics: US Census Bureau, American Community Survey 5-year estimates 2020-2024; 2020 Census P.L. 94-171 (public domain).
2028 candidates: Federal Election Commission (public domain).
Photos: official portraits, public domain (US government); see Photo credits.
PollCheck US. Data through November 5, 2026. Photo credits